Shrink an image's file size without leaving your browser. Pick a photo, set the quality, and download a smaller version — great for faster-loading pages. Your image never leaves your device.
Pick JPG, PNG or WebP files — they stay on your device. No 5 MB cap, no 20-image limit.
What this free tool is great for: a quick, one-off job with no signup — it runs in your browser and there's nothing to manage.
Its honest limit: it's a quick one-off in your browser — it won't save, track, automate or scale what you do with it.
A free tool is fine for a one-off. If image compressor is a weekly job, these take it off your plate.
Best for people making quick social images in a browser
Sounds like you? “I want a cheap, ad-free photo editor in my browser for quick social and marketing images.”
Plan that fits: Plus, €2.49 a month (€1.99 a month billed yearly), shown in euros from a Netherlands connection
Best for online stores needing steady product photos and video ads
Sounds like you? “I need a steady stream of product photos and short video ads without paying a studio per shoot.”
Plan that fits: Ultra, $75/mo or $45/mo billed yearly, for 7,500 credits
Best for Shopify sellers in fashion, beauty and home
Sounds like you? “A photo shoot for every product costs too much, and my listings need many consistent product and model photos.”
Plan that fits: Starter, $29.90 a month or $299 a year (100 credits a month)
Best for high-volume portrait and wedding photographers using Photoshop
Sounds like you? “I retouch a lot of portraits and want the repetitive skin, hair and dust work automated.”
Plan that fits: Start subscription, $169 a year (full plugin set, 2,400 retouching credits); perpetual plugins from $145 once each
Picked from our review dossiers: who each tool suits, their problem in their words, and the plan that fits. “Try” buttons are affiliate links: we may earn a commission if you sign up, at no extra cost to you. It never changes our verdict.
Images are, by a wide margin, the heaviest thing most pages ship — routinely more than half of a page's total bytes. Every unnecessary kilobyte is paid for on every load, by every visitor, forever: slower first paint, worse Core Web Vitals, more data burned on mobile plans, and a measurable slice of visitors who simply leave before the page finishes. The absurd part is how avoidable it is — most images online are two to ten times heavier than they need to be at identical visible quality.
This compressor removes that excess in your browser: pick a file, pick a quality, and download a lighter version. Nothing uploads, which matters when the image is a contract scan, an ID or a screenshot of something internal.
Lossy formats like JPG and WebP exploit a gap between what a file stores and what an eye perceives. They discard information human vision is bad at noticing — fine colour differences in busy textures, high-frequency detail in shadows — and keep what we're sharp at, like edges and faces. That's why a photo can lose eighty percent of its bytes and look untouched: the discarded data was perceptually redundant.
It's also why compression artifacts, when you push too far, look the way they do — smudged blocks and halos around edges are the visible seams of the perceptual shortcuts. The skill isn't avoiding loss; it's staying on the invisible side of it.
There is no universally correct quality number, because content decides. Busy photographs — landscapes, crowds, texture — hide compression beautifully and often survive 65-75% untouched to the eye. Portraits and product shots with smooth gradients show banding sooner; keep them around 80-85%. Screenshots with fine text are the fussiest — small type smears early, which is why pixel-lossless PNG sometimes beats a lossy format there despite bigger files. The honest procedure: compress, then judge at the size the image will actually display — not zoomed to 300%, which is a test no visitor will ever run.
If you can't see the difference at display size, the bytes you removed were pure waste.
Compression alone is leaving money on the table. File size responds to three multiplicative levers: pixel dimensions (our image resizer — halving both dimensions quarters the bytes), encoding quality (this tool), and format choice (WebP typically beats JPG by a meaningful margin at equal quality, and our resizer converts). A 4,000-pixel, 92-quality JPG hero image versus a 1,600-pixel, 80-quality WebP of the same photo is routinely a 10-20× difference — with no visible change in the layout where it actually appears.
Run the levers in that order: right-size first, then convert, then tune quality; each step compounds the previous one.
Most online compressors are upload services: your file travels to their server, gets processed, comes back. For holiday photos, fine. But think about what actually gets compressed at work — screenshots of dashboards and internal tools, scans of contracts and IDs, product images under embargo. Uploading those to a third party's server, under a retention policy you've never read, is a quiet data leak dressed up as a utility. This tool's canvas-based approach means the image is decoded, recompressed and downloaded entirely inside your browser — you can load the page, go offline and compress away. For anything sensitive, local-only isn't a nicety; it's the requirement.
Some destinations punish weight more than others. Email: many gateways cap attachments around 10-25MB, and a three-photo mail that bounces is a classic; compressed images sail through. CMS and marketplaces: upload limits and slow media libraries reward lean files. Mobile-first audiences: every image is paid for over a cellular plan — in markets where data is expensive, page weight is genuinely a reach question. And web performance: Google's Core Web Vitals (particularly Largest Contentful Paint) are dominated by hero-image weight on most sites, which makes compression one of the few SEO tasks with an immediate, mechanical payoff. Same picture, faster everywhere — there's no catch to it.
The difference between a fast site and a slow one is rarely knowledge — it's whether optimisation happens by default or requires remembering. Make the compressed version the only version that leaves your machine: compress right after exporting from your design tool or camera roll, before anything gets uploaded anywhere. Keep originals in your archive if you like (recompressing an already-lossy file compounds artifacts, so always work from the source), but never publish them.
Teams formalise this with an asset rule — nothing over ~300KB enters the CMS without a reason — which turns a good intention into a checkable standard that survives busy weeks and new hires.
One failure mode deserves its own warning: compressing an image that was already heavily compressed. Lossy encoding discards information permanently, and each generation of re-encoding stacks its artifacts on the last — the digital equivalent of photocopying a photocopy. A photo that's been through three social-media downloads and two WhatsApp forwards will look visibly worse after even gentle recompression, because there's no clean signal left to preserve. The rule: always compress from the best source you have — the original export, not the version that's been around the block.
And when you receive an already-tiny image that still looks poor, more compression isn't the answer; going back to whoever has the original is.
No — compression happens entirely in your browser using a canvas. The image never leaves your device.
For photos, 60–80% usually cuts file size dramatically with little visible loss. Lower it further for thumbnails where detail matters less.
Images are the biggest cause of slow pages. Smaller files load faster, improving user experience and SEO — especially when paired with a fast host like Hostinger.
The pricing behind our reviews is published as an open dataset, with the sentence behind every cost-trap flag and the date it was researched. Free to use with attribution (CC BY 4.0).
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